Even after the Iowa Supreme Court rejected a 72-hour waiting period for abortions, the state still could be home to the nation's most restrictive abortion regulations.

Planned Parenthood of the Heartland sued over the waiting period requirement, which was signed into law last year by then-Gov. Terry Branstad. The law, which also included a ban on most abortions after 20 weeks, was placed on hold during the challenge.

How does Iowa fit into the nation's abortion laws?

In 1973, the U.S. Supreme Court ruled that women have a right to obtain an abortion but states can regulate the practice. Since then, dozens of states have harnessed that authority to require certain disclosures on abortion practices, limit public funding of abortion providers, implement mandatory waiting periods and limit abortions after a specific point in the pregnancy.

That group's records indicate that 17 states limit abortions after a fetus is considered viable, six states limit abortions beyond 24 weeks and 19 states prohibit abortions after 20 weeks. Most regulations include exceptions if the life or health of the woman is at risk.

Illinois: The state requires that parents of a minor be notified before an abortion is provided.

Minnesota: A woman in Minnesota must receive counseling and observe a 24-hour waiting period before obtaining an abortion. The state also requires parental notification in cases of minors seeking an abortion.

Missouri: The state bans most abortions after a fetus is considered viable with exceptions for cases in which a woman's health is endangered. Missouri limits the coverage of abortion on private and public employee health insurance plans and limits public funding of abortion to only cases of life endangerment, rape or incest. A woman must receive counseling and observe a 72-hour waiting period before obtaining an abortion. The state also requires parental consent in cases of minors seeking an abortion.

Nebraska: The state bans most abortions after 20 weeks, limits the coverage of abortion on private health insurance plans and limits public funding of abortion to only cases of life endangerment, rape or incest. A woman must receive counseling and observe a 24-hour waiting period before obtaining an abortion. The state also requires parental consent in cases of minors seeking an abortion.

South Dakota: The state bans most abortions after 20 weeks. South Dakota limits public funding of abortion and requires women to seek counseling and observe a 72-hour waiting period before obtaining an abortion. The state also requires parental notification in cases of minors seeking an abortion.

Wisconsin: The state bans most abortions after 20 weeks and requires that a woman receive counseling and observe a 24-hour waiting period before obtaining an abortion. Women must undergo an ultrasound prior to an abortion and the provider must show and display the image to the patient. The state limits public funding of abortion services and requires parental consent for minors seeking the procedure.